InformationZolpidem is poorly investigated, but existing data indicate low environmental risk.
Zolpidem has been detected in treated wastewater in Stockholm County in the last five years (2012-2016).
Zolpidem is a benzodiazepine-like hypnotic. The benzodiazepine oxazepam has been shown to alter the behavior of fish which can give potential effects on the ecological balance. Further research is ongoing.
The risk classification insignificant, according to Fass.se, is based on total sold amount (kg) of the substance in Sweden during the year 2014 and the toxicity of the substance.